I would like to replicate this matter but I would need additional information about your system configuration and step by step information that will help me on this request.
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Answers (N/A if not applicable)
Provide a detailed description of the issue
23.976 fps graphics are output at 23.979 according to madVR (see attachment in next post)
Please place an X to the right of the option showing how often you see this issue using specific steps. (Ex: 'Every few times a game is started it flickers.' <- This would be "Often")
Always (100%): X
Very Sporadic (<20%):
Brand and Model of the system.
Hybrid or switchable graphics system?
ie Does it have AMD or NV graphics too?
Intel HD Graphics Iris 540
Make and model of any Displays that are used to see the issue (see note2 below).
LFP = Local Flat Panel (Laptop panel)
EFP = External Flat Panel (Monitor you plug in)
Samsung UA48HU8500 UHD TV
How much memory [RAM] in the system (see note2 below).
Provide any other hardware needed to replicate the issue.
ie: Cables&brand, cable type [vga, hdmi, DP, etc], dock, dongles/adapters, etc
Kordz EVX series HDMI cables
Hardware Stepping (see note1 below).
Operating System version (see note2 below).
Windows 7 Professional x64
VBIOS (video BIOS) version. This can be found in “information page” of CUI (right click on Desktop and select “Graphics Properties”.
Graphics Driver version; for both integrated Intel and 3rd party vendors (see note2 below).
SW or Apps version used to replicate the issue.
Single display, clone, or extended (see note2 below).
Display resolution & refresh rate setting of each display (see note2 below).
23, 24, 25, 29, 30, 50, 60 Hz
AC or DC mode, i.e. is power cable plugged in or not?
How to repro
Please provide steps to replicate the issue. These steps are very crucial to finding the root cause and fix.
A screenshot to illustrate the issue is a huge plus. A video of the failure is even better! Attach to the post or provide the YouTube link.
- Issue is consistent 100%
- Screenshots to follow
- Video Player MPC-HC v1.7.9
- Video Renderer madVR v0.90.24
- Display Rate switching enabled
- Issue is consistent 100%
Thanks for the information.
I have checked the picture and I noticed about Display 23.979Hz, this is the actual monitor refresh rate and movie 23.976 FPS. Both are different.
Can you please let me know what is exactly the problem? Is it the FPS or the Hz?
Thank you for looking.
The monitor refresh rate should be 23.976Hz to match the movie 23.976 FPS.
If you look at the attached jpeg of the screenshot posted in the Anandtech article I referred to in my original post, you will see that the monitor refresh rate is 23.97602Hz from a movie 23.976 fps. That is what prompted them to report that "the NUC6i5SYK has the most accurate display refresh rates of all the PCs that we have evaluated so far".
They were using Windows 10 Professional x64 in their test NUC. I am aiming to achieve the same level of accuracy with my NUC6i5SYH running Windows 7 Professional x64.
If you are using madVR as your video renderer there is a standard hotkey Ctrl+J that toggles the On Screen Display while movie is playing. (This can be changed in madVR options under user interface|keyboard shortcuts.)
To install madVR expand the zip file anywhere on your pc and run install.bat.
madVR can be set as your video renderer in MPC-HC View|Options|Output|DirectShow Video dropdown.
To open madVR in order to set options right click on playing video in MPC-HC and select madVR from the Filters list. On the first madVR screen that opens you can select an option to Show Tray Icon.
In order to test the display refresh rate for 23.976 fps movies set madVR display mode options under devices|display modes (expand your output device to see this option). Switch to matching display mode should be checked and an appropriate display mode e.g. 1080p23 needs to be listed under "list all display modes madVR may switch to".
Thank you for doing the test. Your madVR stats are definitely an improvement on mine, but still not quite achieving the 23.976 Hz refresh rate.
I suspect that the Windows 7 drivers for the NUC6i5SYH/K are the cause of these variations from 23.976. Could I ask you to confirm that your test was conducted on a NUC6i5SYH/K with Windows 7 as the operating system, also which version of the drivers was used?
I still can only get a 23.9789 Hz refresh rate at best with the latest Windows 7 drivers on my NUC6i5SYH/K and with madVR default settings. Different windows modes in madVR make no difference, also whether or not Windows 7 aero mode is enabled. Just to say again I can get 23.976 Hz refresh rates on the same TV monitor from PCs running Windows 7 with Intel HD Graphics 4600 and 5000 (Haswell).
Yes, I tried same Intel® NUC model but I had tried different operating system version. I will install Windows® 7 and will update my findings.
Thank you for trying with Windows 7 installed. It will be useful to compare your results with mine.
Which "different operating system" did you use for your first test?
No I didn't test the issue with Windows 10 fully patched, as you had already done that.
The issue remains. Somehow Anandtech was able to achieve a perfect 23.976 refresh rate using Windows 10 Professional x64 in their test NUC.
Both my experience with Windows 7 x64 and yours with Windows 10 fully patched were an inability to achieve that perfect 23.976 refresh rate.
Why, I don't know. I can only speculate that it is due to:
1. The Intel HD Graphics drivers for both Windows 7 x64 and Windows 10 x64 may have been able to achieve a perfect 23.976 refresh rate when Anandtech tested the NUC earlier this year, and have since been unable to.
2. There is significant variation in the ability of the NUC6i5SYK off the production line to achieve that perfect 23.976 refresh rate.
I consider option 1 is more likely, and ask if you could please request that Intel software engineers have a close look at the ability of the current drivers for the NUC6i5SYK to achieve that perfect 23.976 refresh rate, and if possible deliver drivers that do achieve that perfect 23.976 refresh rate for all platforms.